Jump to content
SASS Wire Forum
Sign in to follow this  
Coyote Kid, SASS#54714

mec bushing size question

Recommended Posts

I have a MEC Sizemaster 12 ga and I'd like to reload shells with Pinnicle powder without using dippers.

Does anyone do this and what size powder bushing do you use for cowboy loads.

I use a 4.0 cc dipper currently (PITA).

Thanks, Coyote Kid

Share this post


Link to post
Share on other sites

I did this once ... w/ 777 so I could stick w/ normal size wads (not those short little red things).

Using a Lee powder density chart ... or something like this ...

http://www.tacticoolproducts.com/powder.pdf

... but ... that makes my head hurt now ... soooooooooo ....

Here is a thread where someone did a much better job and I'm sure these sizes will get you plenty close to start ... (since you are using an actual cc container volume dump)

https://www.shotgunworld.com/bbs/viewtopic.php?t=204955 

Bushing # CC
10 0.8849
11 0.9465
12 0.9958
12A 1.0538
13 1.1133
13A 1.1745
14 1.2294
15 1.2937
16 1.3596
17 1.4272
18 1.4876
19 1.5582
20 1.6305
21 1.6950
22 1.7799
23 1.8473
24 1.9259
25 2.0062
26 2.0777
27 2.1610
28 2.2460
29 2.3326
30 2.4208
31 2.4993
32 2.5906
33 2.6835
34 2.7781
35 2.8622
36 2.9598
37 3.0591
38 3.1600
38A 3.2497
39 3.3537
39A 3.4593
40 3.5530
40A 3.6754
41 3.7721
41A 3.8840
42 3.9976
42A 4.0984
43 4.2150
43A 4.3334
44 4.4533
44A 4.5596
45 4.6826
45A 4.8073
46 4.9336

  • Thanks 1

Share this post


Link to post
Share on other sites
Posted (edited)

Share this post


Link to post
Share on other sites

Thanks, that chart is really helpful. I'd never saw that before.

Now, anyone have a MEC 42 or 42A bushing they'd like to sell?

I'll also look into the adjustable one if I can't find the bush.

 

Share this post


Link to post
Share on other sites
Posted (edited)
17 minutes ago, Coyote Kid, SASS#54714 said:

Thanks, that chart is really helpful. I'd never saw that before.

Now, anyone have a MEC 42 or 42A bushing they'd like to sell?

I'll also look into the adjustable one if I can't find the bush.

 

Just sayin' ... In that same Shotgun World thread ... another guy measured the inside diameter of all the bushings ...

- AND - 9/16 of an inch is .5625 ... (right between the 42/42A bushing) ... If you had any bushing on hand ... you could drill it out w/ a 9/16 drill and be right there!! :ph34r:

42 = 0.559"
42A = 0.566"

 

Edited by Patagonia Pete
edit: but of course ... if you had to buy a 9/16 drill it would cost more than a bushing.

Share this post


Link to post
Share on other sites

I have one of those adjustable measures for my MEC 650 but went back to the bushings. I found the device wouldn't always cycle reliably. A real PITA on a progressive. Wasted far too much time fiddling with it.

 

YMMV

 

https://www.midwayusa.com/product/1833518928/mec-powder-bushing

  • Like 1
  • Thanks 1
  • Sad 1

Share this post


Link to post
Share on other sites
2 hours ago, Abilene Slim SASS 81783 said:

I have one of those adjustable measures for my MEC 650 but went back to the bushings. I found the device wouldn't always cycle reliably. A real PITA on a progressive. Wasted far too much time fiddling with it.

 

YMMV

 

https://www.midwayusa.com/product/1833518928/mec-powder-bushing

My MEC, is a 42+ year old first generation 600 jr. in 12g.

Never have tried a MEC progressive...

OLG

Share this post


Link to post
Share on other sites
Posted (edited)
4 hours ago, The Original Lumpy Gritz said:

My MEC, is a 42+ year old first generation 600 jr. in 12g.

Never have tried a MEC progressive...

OLG

 I had high hopes for it because I'd heard so many good things about them. Up until a few years ago they weren't available for a 650, so when I saw one at Cabelas, I jumped on it.

 

Having said that, I bought my Mec 650 used back in the 80's, so I've no idea how old it is. It's a cantankerous contraption that took a lot of fiddling to get set up. When I added the the adjustable bar, it added a new layer of fiddling and I just gave up. I suppose I could get it dialed in, but it's easier to swap out bushings.

 

Edited by Abilene Slim SASS 81783
  • Thanks 1

Share this post


Link to post
Share on other sites

I've got a drill press and extra bushings, so now I have to try the 9/16th trick for grins.

I'll also order both bushings from Larry Potter.

Now if I could get the collett to quit hanging up the reloader half way down I'll be set.

Yeah it's old and cantankerous (like me) so we're a good match.

Thanks for all the good info. Now it's back to the shop.

Happy Trails, Coyote Kid

  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited)

I drilled a bushing out just because I could but the 42 bushing works fine. I painted the outside of the barrel red so I can see it through the charge bar hole and know it is BP. Would be very exciting to forget to change it and load up a bunch of smokeless rounds!!!!!

Edited by Too Tall Bob

Share this post


Link to post
Share on other sites

When checking charge weights on a single stage MEC remember that the handle is pulled at least 4 times between each powder drop. This causes the powder to settle slightly and is the number one cause for people complaining about the difference between the weight that MEC states vs what people actually measure.

  • Like 1

Share this post


Link to post
Share on other sites

I like the paint it red idea.

My shooting partner (Hot Dawg Honndo) uses my reloader, wouldn't he be surprised.

OK, I'll tell him to look for the red bushing in the hole.

I'll also do a mock run on a couple of shells to see the results.

Share this post


Link to post
Share on other sites
On 4/23/2019 at 3:06 PM, Coyote Kid, SASS#54714 said:

Thanks, that chart is really helpful. I'd never saw that before.

Now, anyone have a MEC 42 or 42A bushing they'd like to sell?

I'll also look into the adjustable one if I can't find the bush.

 

 

I've fooled with the adjustable charge bar, albeit not with BP or subs. My experience with it led me to abandon it's use and sell it. I got $10 at a gunshow and would have gladly given it away. I found the adjusting process to take far too long, and weight variations were too extreme. However I was using Green Dot, and it meters poorly on a good day. With a bushing, it will always be the same, repeatable. Yes, individual charges will vary, but the average will be same. IOW, if you change your load and change charge bars, the #xx bushing you used last year will still drop the same average charge it did a year ago. 

 

I did buy another MEC some time back, and it came with an adjustable bar, and I used it. This time I was loading 410, and found that the ability to adjust the shot to be invaluable. I set the powder for the correct charge of WW296, and then fine tuned the shot until I got the proper crimp. I could live with the time and tiddliness  of setting the powder, because once set it would never change again, then fine tune the shot, which is a hole lot more forgiving. It is a bunch easier to load 12 ga than to load for the 410.

 

Coincidentally, 42 and 42A are the bushings most often used with IMR 4756, I think that is also #38A's claim to fame.

 

I think that buying 42 and 42A is the way to go. I've also drilled out bushings, with mediocre results, that I would not recommend. However custom making a brass one would be neat. Or how about a custom brass bar for BP/subs.

 

Over the years I think I've bought every MEC bushing. 

 

BB

Share this post


Link to post
Share on other sites

Yeah, I think I'll bite the bullet (so to speak) and call Midway to buy the 42 and 42 bushings.

I'll still paint the bushing, that's a good idea.

Thanks again for all the good info from all yall.

Coyote Kid

Share this post


Link to post
Share on other sites

“Paint” it with a magic marker - not any type of paint. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.